Perform the operation and write the result in the standard form.(7 + 3i)2
A. 40 + 42i
B. 58 + 42i
C. 40 - 42i
D. 58 - 42i
Answer: A
Mathematics
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Estimate using front-end rounding:
?
A. 400 B. 390 C. 380 D. 410
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9x
- 
)(
- 
)
A. 9x2 - 9x
- 
+ 10
B. 9x2 - 9x + 10
C. 9x2 - 8x
+ 10
D. 9x2 + 10
Mathematics
Evaluate the surface integral of G over the surface S.S is the hemisphere x2 + y2 + z2 = 5, z ? 0; G(x,y,z) = z2
A. 
?
B. 
?
C. 100?
D. 
?
Mathematics
Express the number in decimal notation.8.09 × 107
A. 8,090,000 B. 566.3 C. 809,000,000 D. 80,900,000
Mathematics